<template>
  <div class="login">
    <el-row>
      <el-col :span="12">
        <div class="login-left">
          <div class="login-left-title">滨州新生结核病筛查后台管理系统</div>
        </div>
      </el-col>
      <el-col :span="12">
        <div class="login-right">
          <div class="login-right-form">
            <el-form
              ref="loginRef"
              :model="loginForm"
              :rules="loginRules"
              class="login-form"
            >
              <h3 class="title">登录</h3>
              <el-divider>
                <span class="login-divider">使用账号登录</span>
              </el-divider>
              <el-form-item prop="username">
                <el-input
                  v-model="loginForm.username"
                  type="text"
                  size="large"
                  auto-complete="off"
                  placeholder="账号"
                >
                  <template #prefix>
                    <svg-icon
                      icon-class="user"
                      class="el-input__icon input-icon"
                    />
                  </template>
                </el-input>
              </el-form-item>
              <el-form-item prop="password">
                <el-input
                  v-model="loginForm.password"
                  type="password"
                  size="large"
                  auto-complete="off"
                  placeholder="密码"
                  @keyup.enter="handleLogin"
                >
                  <template #prefix>
                    <svg-icon
                      icon-class="password"
                      class="el-input__icon input-icon"
                    />
                  </template>
                </el-input>
              </el-form-item>
              <!--      验证码不需要-->
              <!--      <el-form-item prop="code" v-if="captchaEnabled">-->
              <!--        <el-input-->
              <!--            v-model="loginForm.code"-->
              <!--            size="large"-->
              <!--            auto-complete="off"-->
              <!--            placeholder="验证码"-->
              <!--            style="width: 63%"-->
              <!--            @keyup.enter="handleLogin"-->
              <!--        >-->
              <!--          <template #prefix>-->
              <!--            <svg-icon icon-class="validCode" class="el-input__icon input-icon"/>-->
              <!--          </template>-->
              <!--        </el-input>-->
              <!--        <div class="login-code">-->
              <!--          <img :src="codeUrl" @click="getCode" class="login-code-img"/>-->
              <!--        </div>-->
              <!--      </el-form-item>-->
              <el-checkbox
                v-model="loginForm.rememberMe"
                style="margin: 0px 0px 25px 0px"
                >记住密码</el-checkbox
              >
              <el-form-item style="width: 100%">
                <el-button
                  :loading="loading"
                  size="large"
                  type="primary"
                  round
                  style="width: 100%; background-color: #5765ef"
                  @click.prevent="handleLogin"
                >
                  <span v-if="!loading">登 录</span>
                  <span v-else>登 录 中...</span>
                </el-button>
                <div style="text-align: center; margin: 12px auto">
                  <router-link class="link-type" :to="'/register'"
                    >注册学校账号</router-link
                  >
                </div>
              </el-form-item>
            </el-form>
          </div>
        </div>
      </el-col>
    </el-row>
    <!--  底部  -->
    <div class="el-login-footer"></div>
  </div>
</template>

<script setup>
import { getCodeImg } from '@/api/login'
import Cookies from 'js-cookie'
import { encrypt, decrypt } from '@/utils/jsencrypt'
import useUserStore from '@/store/modules/user'
import { useRoute, useRouter } from 'vue-router'

const userStore = useUserStore()
const route = useRoute()
const router = useRouter()
const { proxy } = getCurrentInstance()

const loginForm = ref({
  username: 'admin',
  password: 'admin123',
  rememberMe: false,
  code: '',
  uuid: '',
})

const loginRules = {
  username: [{ required: true, trigger: 'blur', message: '请输入您的账号' }],
  password: [{ required: true, trigger: 'blur', message: '请输入您的密码' }],
  code: [{ required: true, trigger: 'change', message: '请输入验证码' }],
}

const codeUrl = ref('')
const loading = ref(false)
// 验证码开关
const captchaEnabled = ref(true)
// 注册开关
const register = ref(false)
const redirect = ref(undefined)

watch(
  route,
  (newRoute) => {
    redirect.value = newRoute.query && newRoute.query.redirect
  },
  { immediate: true }
)

function handleLogin() {
  proxy.$refs.loginRef.validate((valid) => {
    if (valid) {
      loading.value = true
      // 勾选了需要记住密码设置在 cookie 中设置记住用户名和密码
      if (loginForm.value.rememberMe) {
        Cookies.set('username', loginForm.value.username, { expires: 30 })
        Cookies.set('password', encrypt(loginForm.value.password), {
          expires: 30,
        })
        Cookies.set('rememberMe', loginForm.value.rememberMe, { expires: 30 })
      } else {
        // 否则移除
        Cookies.remove('username')
        Cookies.remove('password')
        Cookies.remove('rememberMe')
      }
      // 调用action的登录方法
      userStore
        .login(loginForm.value)
        .then(() => {
          const query = route.query
          const otherQueryParams = Object.keys(query).reduce((acc, cur) => {
            if (cur !== 'redirect') {
              acc[cur] = query[cur]
            }
            return acc
          }, {})
          router.push({ path: redirect.value || '/', query: otherQueryParams })
        })
        .catch(() => {
          loading.value = false
          // 重新获取验证码
          if (captchaEnabled.value) {
            getCode()
          }
        })
    }
  })
}

function getCode() {
  getCodeImg().then((res) => {
    captchaEnabled.value =
      res.captchaEnabled === undefined ? true : res.captchaEnabled
    if (captchaEnabled.value) {
      codeUrl.value = 'data:image/gif;base64,' + res.img
      loginForm.value.uuid = res.uuid
    }
  })
}

function getCookie() {
  const username = Cookies.get('username')
  const password = Cookies.get('password')
  const rememberMe = Cookies.get('rememberMe')
  loginForm.value = {
    username: username === undefined ? loginForm.value.username : username,
    password:
      password === undefined ? loginForm.value.password : decrypt(password),
    rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
  }
}

getCode()
getCookie()
</script>

<style lang="scss" scoped>
.login {
  height: 100%;
}

.login-left {
  background-color: #4a46d3;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.login-right {
  display: flex;
  justify-content: center;
  align-items: center;
}

.login-left-title {
  width: 47%;
  color: white;
  font-weight: bold;
  font-size: 3rem;
}

.title {
  text-align: center;
  color: #111827;
  font-weight: bolder;
  font-size: 24px;
}

.login-form {
  padding-top: 60%;
  border-radius: 6px;
  background: #ffffff;
  margin-right: 15%;
  width: 450px;
  .el-input {
    height: 35px;

    input {
      height: 35px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 0px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 40px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 40px;
  padding-left: 12px;
}

/* Profile */

.login-divider {
  color: #d8dce3;
}
</style>
